Steam-generator



ZSheets-Sheet 1.

Patented Jan. 30, 1883.

E. F. GORDON 8u H. HOBBS.

STEAM GENERATOR.

(No Model.)

N PETERa Ph Lm gm, w x c n r (No Model.) 2 Sheets-Sheet 2 E. P. GORDON 8v H. HOBBS.

STEAM GENERATOR. No. 271,329. Patented Ja.11.30,l883.

lhvrrnn STATES AfrnNr OFFICE.

EDWARD .F.GORDON AND HORATIO HOBBS, OF CONCORD, NEW IIAMFSHIRE.

STEAM-G ENERATOR.

SLDEUIFICATION forming part of Letters Patent No. 271,329, dated January 1883,

applicatif". 'nica May 21,1582. (Nahuatl.)

\ provenients in Steam-Generators; and we do hereby declare that the same are fully described in the iollowing specification and illustrated in the accompanying drawings.

The object of this invention is to provide simpler and more efiicient means than those heretofore used for the purpose of generating steam, and to so arrange the parts of the apparatus as to utilize to the utmost the heat employed, as well as to provide for readily cleaning the tlues, even while in use.

Our invention is primarily a sectional boiler composed of a series of connected cast-metal hollow sections, each' having within itself a lue-openin g, around which the water contained in said section circulates while being heated, and each connecting with the steam-space above and preferably with a water-supply below, common to all. These units or sections of the boiler are original in form, construction, arrangement, and means of connection, and the apparatus formed by their union, as hereinafter described, contains novel features, which will be recited in the appended claims.

In the drawings, Figure l is a top View or plan ot' the generator formed by the connected sections, showing the drum removed. Fig. 2 is a vertical sectional View of the same atm Fig. 3 represents in perspective one of the sections detached; Fig. 4. shows a section employed as a deiiector and having a damper for opening a direct draft. Fig. 5 illustrates a pendent partition employed in the spaces between the several sections to throw the caloriccurrent against the walls of said sections; and Figs. 6 and 7 indicate the means and mode of counectin gthe sections, hereinafter referred to.

The form of the sections A A will be clear from Fig. 3, and their arrangement relatively to each other and the tire-pot from Figs. 1,2, and 7. The tire-pot B is central, and the series ot' sections or units surround it in a circle, being kept from immediate contact with the incandescent fuel by the fire-brick C. Above the nre-brick the sections project inwardly on yan oblique line, so that a-dome is formed over approach the center ofthe tire-pot and titinto 6o their places in the circle. This wedge form is not complete, even at the upper end, since the point of each is cut away sufficiently to leave the feed-aperture E, and the sides are beveled or recessed so as to form between each two adjacent sections a vertical space, F, substantially hexagonal in form. These spaces form parts of an annular iiue, as will be described, and are utilized also for the purpose of inserting a brush vertically at intervals to clean out 7a said iiue. rlhe other parts ot' said Hue are indicated in Figs. 2 and 4, and are formed by the central apertures, F, through each casting or section A. Then thesections are secured in position side by side itis obvious that a continuous horizontal annular flue will be formed by the several connected spaces. The caloric-current is deiiected except when starting the iire, and is caused to make the circuit of this iiue F' F by any suitable mea-ns, pref- 8o erably by a dat and hollow section, G, substituted for one of the sections A, and set obliquely, so that such heated current: will enter the iiue F F in front of said section Gr, and

after making the circuit will emerge in rear ot' 85 said section and pass off through the smokepipe and chimney.

When the tire is being started and a direct draft is desired the damper H in the section Gis opened by the hinge-rod H. .At such 9o times the heated current will principally pass off without traversing the flue F F', and will so continue until the damper is closed.

The several sections are secured together laterally in any convenient manner. We have devised a convenient means of attachment, Which will be readily understood by reference, to Figs. 3, 6, and 7. Lateral openings I are provided in the sides ofthe wedge-shaped upper ends of the sections, so as to coincide and 10o communicate with each other. A T-bolt, K,

has its head inserted in one of these openings,

The aperture Eis 55 2 @weee with its threaded end extending through the opening into the adjacent section to receive a nut which forces a sliding clamp or button, L, against the inner wall ot'such adjacent section, and thus holds both rigidly together. Alittle litharge or red lead applied between the surfaces makes the joint steam-tight, while the seriesofopenings I I permit the free passage and comminglingof the steam generated in the several sections. Proper outlet-pipes M for the steam are provided to conduct it to the steamcham-ber. Each section contains water surrounding the tine-aperture F, as seen in Fig. 2, and each shouldconnect directly or indirectly with the annular Water-way N. This connection is readily made by a nipple or short tube, 0, which serves at the saine time to support the section'upon the base J,in which the water- Way N is formed. A lng or shoulder on said base adjoining the fire-brick gives further stipport. The vertical spaces F between the sections give ready access to the annular line, and permit it to he brushed down and cleaned out from time to time without disturbing the fire. The soot so dislodged from the walls ot' the sections may be readilytaken out by means of removable doors or slides P. The spaces F are provided each with a removable cover, V, and i-'roin each cover depends a deflecting-partition, V, which presents its broad side across the caloric-current in the fine F F', and causes said current to inipinge against the walls of the spaces F, whereby the water within the sections is additionally heated by reason of suoli deiiectiou against the walls thereof.

For the purpose of utilizing the heat to the uttermost, we provide projecting prongs Q on the exposed faces ofthe sections, that the heat from the fire and from the curi-ent in the iiue may be conducted to the water iiiclosed in the sections.

The series of sections may be iiiclosed iii a galvanized-iron or other cylinder, It, to retain the heat which would otherwise be lost by radiation. rlhis cylinder rests on standards S, erected on the base J. lts top is preteral'ily a -series of dat plates covering the upper ends ot the sections, and separated from them by a thin layer of asbestus, U. Between the standards S are removable doors S for the purpose of 5a clearing out, from time to time, the accumulations ot" ashes and soot.

Te claim as our inventionl. A. steam-generator composed oi' a series of connected cast-metal hollow sections arranged in a circle around the tire-pot, each section having a central opening through it, forming part ot' an annular horizontal flue, and all arranged as described, so that theheat, while in the fire-pot, applies primarily and directly to the inner face of the several sections, and subsequently to the central part of each section, asthecaloric-curreiitpassesthrough theseveral openings forming said line, for the purposes set forth.

2. Inasteam-generator,aseriesot" connected hollow castings surrounding the tire-pot, said sections having apertures through them, which together i'orni a coiitinnous channel for the products of combustion, in combination with an oblique deiiector, made hollow and adapted to contain water to be heated by the current impinging on it, and provided with an opening for direct dratt when desired, substantially as set forth.

3. A steam-generator having an annular horizontal Hue for the passage of the heated products of combustion, and provided with a series oi' covered vertical apertures through said llue, and with soot-discharging doors or slides at the base of said apertures, for the purpose set forth.

4. A steaingenerator formed of connected hollow sections,and having an annular horizontal iiue with covered vertical apertures at intervals, in combination with pendent partitions in saidtlue and apertures, serving to deiiect the caloric-current against the walls thereof', for the purpose set forth.

In testimony whereof we hereto aiiiX our signatures in presence ot' two witnesses.

EDWARD F. GORDON.v

HORATI() HOBBS. Vitnesses:

N. H. SPENCER, E. A. PHELPs. 

